✳ ANSWER · DIRECT
How do I upload in HD on Instagram?
In Instagram: Settings → Account → 'Upload at highest quality' toggle (or 'Data Saver' off). Upload 1080×1920 H.264 MP4 ≤100 MB. Validate before upload.
Detail
Instagram compresses by default for cellular data. To preserve quality, enable the highest-quality upload toggle. The source must be H.264 + AAC in MP4. The File Doctor checks all of these against the published Instagram spec.
Validate your file against the target platform before you ship.
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